Improvement in harness-motions for looms



0. w. KENISON Harness-Moti'un for Looms.

Patented April 20,1875.

b e S u a u W THE GRAPHIC CO.PHOTO LITH.39 3:41 PARK PLAGE,N.Y.

OREIN VVpKENISON, OF LAWRENGE, MASSACHUSETTS.

IMPROVEMENT IN HARNESS-MOTIONS FOR LOOMS.

Specification forming part of Letters Patent No. 162,23S, dated April20, 1875 application filed March 2, 1875.

!['0 all whom 'it 'may concern:

Be it known that I, ORRIN W. KENISON, of Lawrenee, in the county ofEsseX and Sta-te of Massachusetts, have invented an Improvement inHarness-Motion for Fancy-Looms, of which the following is aspecification:

My invention relates to an improvement in fancy-looms, of the classtermed the closed shed, in which all the harnesses are brought to acommon level, and the shed closed after each pick.

The object of my invention is to produce a harness-motiou which shall besimple in operation, requiring much less power, and capable of muchgrcnter speed than in the ordinary Construction of looms of this class.Owing to its peculiar Construction, the operation isso simple as toenable any person of ordinary skill and intelligence to readily manage aloom possessing my present improvement.

The improvements apply to that class of fancy-looms in which theharnesses are raised and lowered by means of a series of uprghtlevers--one for each harness; the, said levers being supported on ashaft at their centers on one side of the loom, and connected at theirupper and lower ends, by straps or other suitable means, with theirrespective harnesses. At or near the centers of these upright leversproject horizontal arms, having on their ends segmental gears, whichengage with corresponding racks on the lower ends of the verticaljack-bars.

My invention consists in the employment of two arms placed upon thevertically-acting rods, which are operated by the double crankshaft, thesaid arms being made to actuate the segment-gears, so as to close theshed at each revolution of the crank-shaft.

The drawings exhibit a portion of a loom embodying my invention. Figures1 and 2 are vertical sections of a loom, showing the parts in differentrelative positions. Figs. 3 and 4 are enlarged viewsindetail, showing myimprovement.

a represents a portion of the frame of the loom. On the shaft 1) aremounted the harness-levers I b. To each lever is attached an arm, 0,provided at its end with a segmental gear, as shown. These gears engagewith 'acks on the lower portion of the jack-bars e. The jack-bars arecaused to become engaged with, and disengaged from, the elevator anddepressor bars by means of the levers l, actuated by the springs 70, onone side, and the levers i, operated by the pattern-chain h, on theother side-the bent lever l serving to keep the jack-bar pressed forwardto engage with the depressor-bar, until the contrary action upon thejack-bar is cause-d bythe action of the pattern-chain upon the lever i.On the main double crank-shaft are mounted the two vertical rods n n",each one having an arm, ff ,arranged atright angles to the jackbars e e,and moving in opposite directions to each other, and corresponding withthe movements of the elevator and depressor bars. WVhen thedepressor-bar g has carried down the jack-bars to their lowest point,the shed is open, as shown by the position of the harnesslevers in Fig.2. The bars f f' are made to bear upon the upper and lower edges of thesegmental gears, and are brought to their earest proximate position ateach revolution of the erank-shaft, thus bringing the harnesslevers intoline, and closing the shed at each pick ot' the loom. Instead ofhavingthe bars ff' bear directly on the upper and lower edges of thesegmental gears, they can be made to act directly on the jack-bars e bypassing them outside of the jack-bars, and causing them to act on piuswhich may be placed in the jack-bars.

It will be seen from the foregoing description that, as the elevator anddepressor bars g g and also the bars ff', are farthest apart, therackbars are at their highest point, and the shed is open. Thecrank-slaft acting upon the vertical rods n n', the bars f f' are cansedto press upon the segmental gears above and below, thus bringing theharnesslevers into line when the shed is closed, the position of theparts being shown in Fig. 1.

This Construction and arrangementof parts admits of a limited, andconsequently very rapid, motion of the vertical bars n n', causing acorrespondingly rapid motion of the loom. The parts are not liable toget ont of order, and the Simplicity of the Construction and operationof the loom enables a person of ordinary skill and intelligence tomanage the loom without difficulty.

3. The oombination of the harness-aotuating levers b, provided with ahorizont-al arm, c, terminutig in a geared segment, and slidiug jack-berg, provided with a raok adapted to gear with the arm 0, all arrauged andoperating together in the manuer and for the purpose herein set forth.

In testimony whereof I have signed my name to this speoifioa-tion in thepresence of two subscribing witnesses.

OREIN W. KENISON.

Witnesses:

ANDREW O. STONE, F. E. CLARKE.

